Mahsheed Shariati, D.O.
NPI 1891952198 · Family Medicine Physician · Castro Valley, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mahsheed Shariati, D.O. is a Family Medicine Physician provider in Castro Valley, CA (NPI 1891952198).
Provider details
- NPI number
- 1891952198
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 20A10825 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
494 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 279 | $152 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 52 | $110 |
| Automated Urinalysis Test81003 | 44 | $2 |
| Detection Test By Immunoassay With Direct Visual Observation for Streptococcus, Group a (strep)87880 | 38 | $16 |
| Detection Test By Multiplex Amplified Probe Technique for Severe Acute Respiratory Syndrome Coronavirus 2 (sars-Cov-2) (covid-19), Influenza Virus Types a and B, and Respiratory Syncytial Virus87637 | 28 | $140 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 39 | 39 |
| Fluticasone Propionate | 25 | 24 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 25 | 25 |
| Cephalexin | 24 | 23 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (4)
- 4053 Lone Tree Way Ste 101Antioch, CA 94531-6210Phone: (925) 756-3499Fax: (510) 506-7732
- 2500 Milvia StBerkeley, CA 94704-2636Phone: (510) 204-5514Fax: (510) 204-5515
- 12 Camino EncinasOrinda, CA 94563-3304Phone: (510) 204-8075Fax: (925) 254-9871
- 1455 MontegoSuite 205Walnut Creek, CA 94598-2990Phone: (925) 939-4444Fax: (925) 939-5010
Registry dates
- Enumerated
- 2008-05-22
- Last updated
- 2024-02-29
- Certified
- 2024-02-29
Frequently asked questions
- What is Mahsheed Shariati's NPI number?
- Mahsheed Shariati's National Provider Identifier (NPI) is 1891952198, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mahsheed Shariati's specialty?
- Mahsheed Shariati is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mahsheed Shariati located?
- Mahsheed Shariati's practice location on file with NPPES is 20101 Lake Chabot Rd, Castro Valley, CA 94546-5305.
- What is Mahsheed Shariati's phone number?
- The practice phone number listed in the NPPES registry for Mahsheed Shariati is (510) 756-3499.
- Does Mahsheed Shariati accept Medicare?
- Mahsheed Shariati is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mahsheed Shariati's NPI active?
- Yes — Mahsheed Shariati's NPI (1891952198) is active in the NPPES registry as of the last update on 2024-02-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.